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E. F. WHITE.

HOT WATER FURNACE. No. 540,128. Patented May 28, 1895.

WITNESSES" v I N lNVENTOF yV/(MM I MW v@ A TTORNEYS.

UNITED STATES PATENT OFFICE.

EDWIN F. WHITE, OF HOLLIDAYSBURG, PENNSYLVANIA, ASSIGNOR TO HIMSELF ANDOSMOND W. GARDNER, OF SAME PLACE.

HOT-WATER FURNACE.

SPECIFICATION forming part of Letters PatentNo. 540,128, dated May 28,1895. Ap lication filed October 29,1894- Serial No. 527,194. (NomodeL)To an whom it may concern.-

Be it known that I, EDWIN F. WHITE, of Hollidaysburg, in the county ofBlair and State of Pennsylvania, have invented a new and ImprovedHot-Water Furnace, of which the following is a full, clear, and exactdescription.

The invention relates to hot water heating systems for heating dwellingsand other buildings; and its object is to provide a new and improved hotwater furnace, which is comparatively simple and durable inconstruction, and arranged to quickly heat the water and circulate thesame through the pipes and radiators, and to utilize the fuel to thefullest advantage.

The invention consists of certain parts and details and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in both the figures.

Figure 1 is a sectional side elevation of the improvement on the line 1l of Fig.2, and Fig.

2 is a sectional front View of the same on the line 2 2 of Fig. 1.

The improved hot water furnace is provided with the usual brick work ora metal shell A,

in which is arranged a fire box B providedwith a grate O resting at itsrear end in the bridge wall D, and at its forward end in the front ofthe brick work or shellA close to the door E, for introducing the fuel.Below the grate O is arranged an ash pit F and a chamber Gr, built inthe front wall of the furnace, and connected at its sides with thereturn pipes H leading from the radiators in the building.

The chamber G is connected with a series of pipes 1, extendinghorizontally and rearwardly directly under the bars of the grate O, thesaid pipes finally passing through the bridge wall D to the rearthereof, tothen extend upward as at I, and then forward and rearward inthe form of a coil 1 arranged in the top of the fire box B as is plainlyillustrated in Fig. 1.

The rear end of the coil I connects with a second coil I located above apartition J extending horizontally between the two coils I and 1 thesaid partition extending from the front of the furnace rearwardly, asindicated in Fig. 1,.the rear end of the partition being a suitabledistance above the top of the bridge Wall D.

In the front part of the furnace above the partition J is arranged achimney K, and in the rear part is arranged a chamber L extendingtransversely, and connected with the rear end of the coil of pipe 1 Fromthis chamber L extend upwardly the out-flow pipes N, leading to theseveral radiators in the building. Now, it will be seen that when thepipe system is filled with water in the usual manner, and a fire isstarted in the fire box B, then the heat generated in the fire box,heats the coils I and I as well as the pipe I extending under the grateC, so that the water circulating through the said pipes and coils isquickly heated and readily flows from the chamber L into the pipes N, torise therein and pass to and through the several radiators, and thenreturn with its temperature lowered,by the pipes H to the chamber G fromwhich the pipes'I start. It will be seen that the heat, smoke and gases,arising from the burning fuel in the grate C in the fire box B, passupward and rearwardly over the bridge wall D and under the partition J,to then pass over the latter and forwardly, to finally pass into thechimneyK extending from the top of the furnace at or near the front endthereof. Thus, the heat will also come in contact with the chamber L,and the chamber G is likewise heated by the downwardly reflected heat,so that the fuel is utilized to the fullest advantage before the smokeand gases pass to the chimney K. It will further be seen that by theconstruction described, a positive Water circulation is obtained and theWater carrying pipes are not in contact with the fuel in the fire boxand hence not liable to be burned. Furthermore, the gases from theburning fuel circulate among the water pipes to heat the same and bytheir proper circulation insure economy in fuel.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- In a hot water furnace, the combination withthe firebox and a horizontal partition form- ICO ing the top of the saidfire box and terminating a suitable distance from the rear furnace wallabove the bridge wall, of a chamber arranged under the grate at thefront end thereof, and connected with the water return pipes, pipesleading from the said chamber and extending under the bars of the grateto the rear of the bridge Wall to then extend upwardly, and each pipe tothen form a horizontal coil under :0 the said partition and a secondcoil over the said partition, and a chamber into which dis* charge therear ends of the uppermost coils of the pipes, the said last namedchamber being connected with the outflow pipes, substantially as shownand described.

EDWIN F. WHITE. Witnesses:

J NO. CRY, O. H. SMITH.

